📄 extract.lst
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ARM COMPILER V2.42, extract 27/03/06 10:45:49 PAGE 1
ARM COMPILER V2.42, COMPILATION OF MODULE extract
OBJECT MODULE PLACED IN .\obj\extract.obj
COMPILER INVOKED BY: C:\Keil\ARM\BIN\CA.exe src\extract.c THUMB DEBUG PRINT(.\LST\EXTRACT.LST) TABS(4) OBJECT(.\obj\extr
-act.obj)
stmt level source
1 /*****************************************************************************\
2 * efs - General purpose Embedded Filesystem library *
3 * --------------------- ----------------------------------- *
4 * *
5 * Filename : extract.c *
6 * Description : This file contains functions to copy structures that get *
7 * corrupted when using direct memory copy *
8 * *
9 * This library is free software; you can redistribute it and/or *
10 * modify it under the terms of the GNU Lesser General Public *
11 * License as published by the Free Software Foundation; either *
12 * version 2.1 of the License, or (at your option) any later version. *
13 * *
14 * This library is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
17 * Lesser General Public License for more details. *
18 * *
19 * (c)2005 Michael De Nil *
20 * (c)2005 Lennart Yseboodt *
21 \*****************************************************************************/
22
23 /*****************************************************************************/
24 #include "extract.h"
25 /*****************************************************************************/
26
27 /*****************************************************************************/
28 #ifdef BYTE_ALIGNMENT
/*****************************************************************************/
euint16 ex_getb16(euint8* buf,euint32 offset)
{
return(ltb_end16(*((euint16*)(buf+offset))));
}
/*****************************************************************************/
euint32 ex_getb32(euint8* buf,euint32 offset)
{
return(ltb_end32(*((euint32*)(buf+offset))));
}
/*****************************************************************************/
void ex_setb16(euint8* buf,euint32 offset,euint16 data)
{
*((euint16*)(buf+offset)) = btl_end16(data);
}
/*****************************************************************************/
void ex_setb32(euint8* buf,euint32 offset,euint32 data)
{
*((euint32*)(buf+offset)) = btl_end32(data);
}
/*****************************************************************************/
void ex_getPartitionField(euint8* buf,PartitionField* pf, euint32 offset)
{
*pf=*((PartitionField*)(buf+offset));
}
ARM COMPILER V2.42, extract 27/03/06 10:45:49 PAGE 2
/*****************************************************************************/
void ex_setPartitionField(euint8* buf,PartitionField* pf, euint32 offset)
{
}
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/
#else
73 /*****************************************************************************/
74 /*****************************************************************************/
75
76
77
78 euint16 ex_getb16(euint8* buf,euint32 offset)
79 {
80 1 return(ltb_end16(((*(buf+offset+1))<<8) + ((*(buf+offset+0))<<0)));
81 1 }
82 /*****************************************************************************/
83
84 euint32 ex_getb32(euint8* buf,euint32 offset)
85 {
86 1 return(ltb_end32(((euint32)buf[offset+3]<<24)+
89 1 ((euint32)buf[offset+2]<<16)+
89 1 ((euint32)buf[offset+1]<<8)+
89 1 ((euint32)buf[offset+0]<<0)));
90 1 }
91 /*****************************************************************************/
92
93 void ex_setb16(euint8* buf,euint32 offset,euint16 data)
94 {
95 1 #ifdef BIG_ENDIAN
*(buf+offset+1) = data>>0;
*(buf+offset+0) = data>>8;
#else
99 1 *(buf+offset+0) = data>>0;
100 1 *(buf+offset+1) = data>>8;
101 1 #endif
102 1 }
103 /*****************************************************************************/
104
105 void ex_setb32(euint8* buf,euint32 offset,euint32 data)
106 {
107 1 #ifdef BIG_ENDIAN
*(buf+offset+3) = data>> 0;
*(buf+offset+2) = data>> 8;
*(buf+offset+1) = data>>16;
*(buf+offset+0) = data>>24;
#else
113 1 *(buf+offset+0) = data>> 0;
114 1 *(buf+offset+1) = data>> 8;
115 1 *(buf+offset+2) = data>>16;
116 1 *(buf+offset+3) = data>>24;
117 1 #endif
118 1 }
119 /*****************************************************************************/
120
121 void ex_getPartitionField(euint8* buf,PartitionField* pf, euint32 offset)
122 {
123 1 pf->bootFlag = *(buf + offset);
124 1 pf->CHS_begin[0] = *(buf + offset + 1);
ARM COMPILER V2.42, extract 27/03/06 10:45:49 PAGE 3
125 1 pf->CHS_begin[1] = *(buf + offset + 2);
126 1 pf->CHS_begin[2] = *(buf + offset + 3);
127 1 pf->type = *(buf + offset + 4);
128 1 pf->CHS_end[0] = *(buf + offset + 5);
129 1 pf->CHS_end[1] = *(buf + offset + 6);
130 1 pf->CHS_end[2] = *(buf + offset + 7);
131 1 pf->LBA_begin = ex_getb32(buf + offset,8);
132 1 pf->numSectors = ex_getb32(buf + offset,12);
133 1 }
134 /*****************************************************************************/
135
136 void ex_setPartitionField(euint8* buf,PartitionField* pf, euint32 offset)
137 {
138 1
139 1 }
*** WARNING C47 IN LINE 136 OF SRC\EXTRACT.C: 'buf': unreferenced parameter
*** WARNING C47 IN LINE 136 OF SRC\EXTRACT.C: 'pf': unreferenced parameter
*** WARNING C47 IN LINE 136 OF SRC\EXTRACT.C: 'offset': unreferenced parameter
140 /*****************************************************************************/
141
142
143
144 /*****************************************************************************/
145 #endif
146 /*****************************************************************************/
147
ARM COMPILER V2.42, extract 27/03/06 10:45:49 PAGE 4
ASSEMBLY LISTING OF GENERATED OBJECT CODE
*** PUBLICS:
PUBLIC ex_getb16?T
PUBLIC ex_setb16?T
PUBLIC ex_getb32?T
PUBLIC ex_setb32?T
PUBLIC ex_getPartitionField?T
PUBLIC ex_setPartitionField?T
*** CODE SEGMENT '?PR?ex_getb16?T?extract':
78: euint16 ex_getb16(euint8* buf,euint32 offset)
00000000 B410 PUSH {R4}
00000002 1C0C MOV R4,R1 ; offset
00000004 ---- Variable 'offset' assigned to Register 'R4' ----
00000004 1C03 MOV R3,R0 ; buf
00000006 ---- Variable 'buf' assigned to Register 'R3' ----
80: return(ltb_end16(((*(buf+offset+1))<<8) + ((*(buf+offset+0))<<0)));
00000006 1C21 MOV R1,R4 ; offset
00000008 1C18 MOV R0,R3 ; buf
0000000A 5C40 LDRB R0,[R0,R1]
0000000C 1C02 MOV R2,R0
0000000E 1C21 MOV R1,R4 ; offset
00000010 1C18 MOV R0,R3 ; buf
00000012 1840 ADD R0,R1 ; buf
00000014 7840 LDRB R0,[R0,#0x1]
00000016 0200 LSL R0,R0,#0x8
00000018 1880 ADD R0,R2
81: }
0000001A BC10 POP {R4}
0000001C 4770 BX R14
0000001E ENDP ; 'ex_getb16?T'
*** CODE SEGMENT '?PR?ex_getb32?T?extract':
84: euint32 ex_getb32(euint8* buf,euint32 offset)
00000000 B410 PUSH {R4}
00000002 ---- Variable 'offset' assigned to Register 'R1' ----
00000002 1C03 MOV R3,R0 ; buf
00000004 ---- Variable 'buf' assigned to Register 'R3' ----
86: return(ltb_end32(((euint32)buf[offset+3]<<24)+
00000004 1C0A MOV R2,R1 ; offset
00000006 3202 ADD R2,#0x2
00000008 1C18 MOV R0,R3 ; buf
0000000A 5C80 LDRB R0,[R0,R2]
0000000C 1C02 MOV R2,R0
0000000E 0412 LSL R2,R2,#0x10
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